Surly Trailer PartsAccomodates 120-145mm hub widthsAttaches to special QR or mounting nutsAdjustable height to keep load levelWorks wtih 20-29" wheels up to 2.6" wideDoes not accomodate snowbike wheelsQuick release is included with the hitch assemblyAttaches with proprietary mounting skewer (Included) or proprietary mounting nuts (sold separately, available late Summer 2011)Item SpecificationsColorBlack